How much does it cost to fix boiler error code GWB200?

Typical repair cost for the boiler GWB200 fault is £60-120 including labour.

GWB200 Low

Boiler Fault Code GWB200

Reviewed by the BoilerFaultCodes Editorial Team Last reviewed 7 July 2026

Fault code GWB200 appears across 1 boiler brand and 1 models. The exact meaning varies by manufacturer — pick your boiler brand below to see the model-specific fix.

Most common meaning This code indicates that the mounting bracket securing your boiler to the wall is not correctly attached or positioned. (As reported on Grant Vortex)

Pick your boiler brand for the GWB200 fix

Grant GWB200 1 model

Source

Information for the GWB200 fault code is sourced from the official service / installation manual for each model that displays it. Read more about how we source fault codes →

Reviewed by the BoilerFaultCodes Editorial Team · Last reviewed 7 July 2026